Dr. William James Ellis, MD
- Part D claims, 2024
- 108
- Hospital affiliations
- 6
- Industry payments
- $121
- Medical group
- 1
- State license
- 1
- Practice address
- 200 Patewood Dr, Greenville, SC 29615
- Practice phone
- Call (864) 454-2600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prisma Health Outpatient Surgery - Patewood
Greenville, South Carolina
Find Dr. Ellis' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William James Ellis is an emergency medicine physician in Greenville, South Carolina
Dr. Ellis practices at Prisma Health Outpatient Surgery - Patewood in Greenville, South Carolina.
Dr. Ellis' NPI, 1972187094, was assigned on May 6, 2021. Dr. Ellis graduated from University of North Carolina at Chapel Hill School of Medicine in 2021. Dr. Ellis holds South Carolina license LL85734.
- NPI
- 1972187094NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143623751
- NPI enumeration date
- May 6, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (864) 454-2600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William James Ellis practices at Prisma Health Outpatient Surgery - Patewood in Greenville, South Carolina
Dr. Ellis' primary practice is Prisma Health Outpatient Surgery - Patewood, at 200 Patewood Dr, Greenville, SC 29615 in Greenville County. The practice phone is (864) 454-2600.
- Prisma Health Outpatient Surgery - Patewood200 Patewood Dr, Greenville, SC 29615 · Greenville CountyPhone(864) 454-2600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. William James Ellis is affiliated with 7 sites of care and 1 medical group
Dr. Ellis' primary practice is Prisma Health Outpatient Surgery - Patewood in Greenville, South Carolina. Dr. Ellis is also affiliated with Prisma Health Greenville Memorial Hospital. The medical group on file is Prisma Health Medical Group. Dmand AI also links Dr. Ellis to 5 more hospitals, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William James Ellis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ellis practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prisma Health Outpatient Surgery - Patewood | Available with a free account |
| +6 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William James Ellis is one of 1,026 emergency medicine physicians in South Carolina
Emergency medicine is Dr. Ellis' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Ellis is licensed in South Carolina.
Specialties and state licenses
- Emergency medicine, South CarolinaPrimary
Emergency medicine physicians near Dr. Ellis
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William James Ellis' patients have a median age of 51
Across all payers, Dmand AI patient panel data puts Dr. Ellis' median patient age at 51, with 58% women.
Dr. Ellis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 51
Patient panel by sex, all payers
- Women58%
- Men41%
Source: Dmand AI Patient Panel Data
Dr. William James Ellis wrote 108 Medicare Part D claims in 2024
In 2024, Dr. Ellis wrote 108 Medicare Part D claims for 77 patients. 89% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $76 in total drug cost. In 2022, CMS named 11 claims across 1 drug.
Dr. Ellis' Part D claims by kind of drug, 2024
- Generic96 claims89%
- Brand-name12 claims11%
Dr. Ellis' most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Ellis' Part D claims, 2024
- Antibiotics28%30 of 108 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 112023: 129%
Drugs named by CMS: 1 in 2023, 1 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. William James Ellis takes part in Medicare
Dr. Ellis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. William James Ellis received $121 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Ellis from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. Bioventus LLC paid the most, $105.
Companies that paid Dr. Ellis the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William James Ellis graduated from University of North Carolina at Chapel Hill School of Medicine
Dr. Ellis graduated from University of North Carolina at Chapel Hill School of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William James Ellis's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William James Ellis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William James Ellis' NPI number?
Dr. William James Ellis' NPI number is 1972187094. It was assigned on May 6, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. William James Ellis?
Dr. William James Ellis is an emergency medicine physician in Greenville, South Carolina. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. William James Ellis practice?
Dr. Ellis practices at 200 Patewood Dr, Greenville, SC 29615. Dr. Ellis' primary practice is Prisma Health Outpatient Surgery - Patewood in Greenville, South Carolina. Dmand AI also links Dr. Ellis to 5 hospitals.
What is Dr. William James Ellis' office phone number?
The practice phone on file for Dr. Ellis is (864) 454-2600.
What is Dr. William James Ellis' medical license number?
Dr. Ellis holds South Carolina license LL85734.
Which hospitals is Dr. William James Ellis affiliated with?
Dr. Ellis is affiliated with Prisma Health Greenville Memorial Hospital. Dmand AI links Dr. Ellis to 5 more hospitals.
What medical group is Dr. William James Ellis part of?
Dr. Ellis is linked to Prisma Health Medical Group.
Does Dr. William James Ellis accept Medicare?
Yes. CMS lists Dr. Ellis as accepting Medicare assignment.
Where did Dr. William James Ellis go to medical school?
Dr. Ellis graduated from University of North Carolina at Chapel Hill School of Medicine in 2021.
What drugs does Dr. William James Ellis prescribe most?
In 2023 Medicare Part D data, Dr. Ellis' most prescribed drugs by claims were Ondansetron ODT.
Has Dr. William James Ellis received payments from drug or device companies?
CMS Open Payments shows $121 in general payments to Dr. Ellis from 2 companies from 2024 to 2024. The largest total came from Bioventus LLC.
How long has Dr. William James Ellis been practicing?
Dr. Ellis graduated from medical school in 2021, 5 years ago.
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